llvm-svn: 41441

llvm-svn: 41440

llvm-svn: 41439

llvm-svn: 41438

llvm-svn: 41437

llvm-svn: 41436

llvm-svn: 41435

llvm-svn: 41434

llvm-svn: 41433

llvm-svn: 41432

hold declarations.  Instead, introduce a new "DeclScope" scope type that
holds them explicitly.  For now, all scopes have this bit, but in the 
future we can use them to fix some issues Neil noticed.

llvm-svn: 41431

llvm-svn: 41430

llvm-svn: 41429

fixes GCC PR33193

llvm-svn: 41428

GCC bug PR33192.

llvm-svn: 41427

llvm-svn: 41426

llvm-svn: 41425

llvm-svn: 41424

llvm-svn: 41423

llvm-svn: 41422

llvm-svn: 41421

llvm-svn: 41420

llvm-svn: 41419

llvm-svn: 41418

llvm-svn: 41417

specifier of functions.

llvm-svn: 41416

llvm-svn: 41415

llvm-svn: 41414

represent imaginary literals:

float _Complex A;
void foo() {
  A = 1.0iF;
}

generates:

  (BinaryOperator 0x2305ec0 '_Complex float' '='
    (DeclRefExpr 0x2305e60 '_Complex float' Decl='A' 0x2305cf0)
    (ImaginaryLiteral 0x2305f40 '_Complex float'
      (FloatingLiteral 0x2305ea0 'float' 1.000000))))

llvm-svn: 41413

llvm-svn: 41412

2) Add support for lexing imaginary constants (a GCC extension):

t.c:5:10: warning: imaginary constants are an extension
  A = 1.0iF;
         ^

3) Make the 'invalid suffix' diagnostic pointer more accurate:

t.c:6:10: error: invalid suffix 'qF' on floating constant
  A = 1.0qF;
         ^

instead of:

t.c:6:10: error: invalid suffix 'qF' on floating constant
  A = 1.0qF;
      ^

llvm-svn: 41411

to merge duplicate code.

llvm-svn: 41410

llvm-svn: 41409

  char *C;
  C != ((void*)0);

Should not warn about incompatible pointer types.  Also, make sure to
insert an implicit conversion even if the operand is null.

llvm-svn: 41408

over uses in DAGCombiner.  Fix interfaces to work
with APFloats.

llvm-svn: 41407

llvm-svn: 41406

llvm-svn: 41405

Surpress the UsualUnaryConversions for compound assignment operators. This change
eliminates the possibility that the left hand expression is an ImplicitCastExpr.
As a result, I removed the check for ImplicitCastExpr in Expr::isLvalue().

This results in the following AST's...

[dylan:~/llvm/tools/clang] admin% cat fix.c

short x; void test4(char c) { 
  x += c; 
  x = x + c;
}
[dylan:~/llvm/tools/clang] admin% ../../Debug/bin/clang fix.c -parse-ast-dump
Read top-level variable decl: 'x'

void test4(char c)
(CompoundStmt 0x2605d30
  (CompoundAssignOperator 0x2605c40 'short' '+='
    (DeclRefExpr 0x2605c00 'short' Decl='x' 0x2605a80)
    (DeclRefExpr 0x2605c20 'char' Decl='c' 0x2605bc0))
  (BinaryOperator 0x2605d10 'short' '='
    (DeclRefExpr 0x2605c60 'short' Decl='x' 0x2605a80)
    (ImplicitCastExpr 0x2605d00 'short'
      (BinaryOperator 0x2605ce0 'int' '+'
        (ImplicitCastExpr 0x2605cc0 'int'
          (DeclRefExpr 0x2605c80 'short' Decl='x' 0x2605a80))
        (ImplicitCastExpr 0x2605cd0 'int'
          (DeclRefExpr 0x2605ca0 'char' Decl='c' 0x2605bc0))))))

llvm-svn: 41404

llvm-svn: 41403

This fixes the following bug...

t.c:1:31: error: expression is not assignable
short x; void foo(char c) { x += c; }

This case, among others are now captured in implicit-casts.c.

llvm-svn: 41402